I think that there are more people wanting to learn photography than there are people that want to buy images. And for that reason, teaching has become a major source of income for a large number of photographers. In fact, some of the world’s highest earning photographers aren’t always the most talented, but the ones who can teach effectively. Lots of photographers sell books, video tutorials, and host workshops to help supplement their income.
My personal opinion -after having met many such characters- in India; either in Varanasi, Rishikesh, Vrindavan et al, as well as at the Kumbh Mela, is that the majority of them are fake in the sense that they're not dedicated ascetics, but individuals who are adopted a vagabondage lifestyle, begging for alms and food...under the guise of being holy and religious.
The most interesting sites for people photography in both Taipei and Hong Kong are in and near temples such as Man Mo and Longshan. The night markets are also a trove for photogenic characters such as the tattooed fellow who stood akimbo guarding his inventory of bric a brac items that lay down in Xichiang market...whether this inventory was honestly procured or otherwise is left to the imagination of viewers.
If the instability of the freelance photographer’s way of life isn’t for you, you can always find a day job that involves traveling. Then you can go to lots of places, be paid for it through your job, and do travel photography in your spare time. Jobs like flight attendant, global salesperson, English teacher (or a spy!) are just several of many professions that let you visit your dream locations, without being too risky on the financial side.
The patrician-looking (and rather taciturn) sadhu in the top photograph did tell me that he had a family, had held a managerial position in the Indian Railway from which he earned a pension (now paid to his wife), but had decided to detach himself from temporal life and was currently studying the Vedas. These are the oldest scriptures of Hinduism. He was the embodiment of a real sadhu who had really espoused the Vairāgya, and was far different from the "sadhus" I encountered on the ghats of Varanasi (below) almost 8 years later.
Whether at home or abroad, when you know the ins and outs of a particular location, you can provide photography tours and location-specific workshops to serve both tourists and serious photographers. In Greece I found a professional photographer offering pricey photo tours in Santorini, a popular island with stunning viewpoints that are difficult to locate. Part of this photographer's service was to unveil these secret locations. Back in Holland, photographer Michiel Buijse offers nighttime photography workshops in Amsterdam, helping photographers shoot stunning long exposures along the historical canals. Consider what you can offer in a location you know well.
Make use of people to give your images life and scale. If the facade of a particular building appeals to you, the picture may be that much better if you show people walking in front of it. They will give it scale and also let viewers know what sorts of people live there, how they dress, and the like. An outdoor café may be more interesting crowded with people than empty.